Google is expanding Gemini Notebook , the product previously called NotebookLM, from a source-grounded research tool into a connected knowledge workspace across the Gemini app and NotebookLM. Official updates published in 2026 describe synced notebooks, real-time conversations, mobile audio recording and interactive overviews, while the product's July rebrand aligns it more closely with Gemini's wider app experience. A brief social signal about ongoing work does not identify a particular f...